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KVPY2013PhysicsRay Optics

A ray of light incident on a transparent sphere at an angle / 4 and refracted at an angle r , emerges from the sphere after suffering one internal reflection. The total angle of deviation of the ray is

Options

  1. A3 2 -4 r
  2. B2 -4 r
  3. C4 -r
  4. D5 2 -4 r

Correct answer

A. 3 2 -4 r

Step-by-step solution

S ₁= 4 - r S ₂= -2 r S ₃= 4 - r S = S ₁+ S ₂+ S ₃= 3 2 -4 r

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